I want to create a rings of different colours on a circle gameObject , I don’t want to deal with shaders or Uv meshes , I don’t now how to write shaders ,but I want to create this effect.

and i want to change the colours at runtime .
I want to create a rings of different colours on a circle gameObject , I don’t want to deal with shaders or Uv meshes , I don’t now how to write shaders ,but I want to create this effect.

and i want to change the colours at runtime .